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A320848 as a simple table

na(n)
21
31
42
53
64
75
87
99
1010
1112
1214
1316
1418
1520
1622
1724
1826
1929
2032
2134
2236
2339
2442
2545
2648
2751
2854
2957
3060
3163
3266
3369
3473
3577
3680
3783
3886
3989
4093
4197
42101
43105
44109
45112
46116
47120
48124
49128
50132
51136
52140
53145
54150
55154
56158
57162
58166
59170
60174
61179
62184
63189

[1,1,2,3,4,5,7,9,10,12,14,16,18,20,22,24,26,29,32,
 34,36,39,42,45,48,51,54,57,60,63,66,69,73,77,80,
 83,86,89,93,97,101,105,109,112,116,120,124,128,
 132,136,140,145,150,154,158,162,166,170,174,179,
 184,189]